Cutter-bar



(No Model.)

F. E. .PARKER s R. M. CLARK.

GUTTERBAR. I

10.4165738. Patenteqnemglo,1889.-

WITNESSES d@ @gym ATTORNEYS.

N.' PETERS. mlmmlmhn. wanhingmn, n, c.

tion, of our improvement.

UNITED STATES PATENT OFFICE.

FRANCIS E. PARKER AND ROSWELL M. CLARK, OF KANSAS CITY, MISSOURI.

CUTTER-BAR.

SPECIFICATION forming part of Letters Patent No. 416,738, dated December10, 1889.

Application filed August 28, 1888 Serial No. 284,031. (No model.)

To all whom, it may concern;

Be it known that we, FRANCIS E. PARKER and RosWELL M. CLARK, residing atKansas City, in the county of Jackson and State ofV Missouri, haveinvented certain new and useful Improvements in Cutter-Bars, of whichthe following is a specification.

The object of our invention is to provide simple means whereby thenecessity of riveting or bolting the sickle-knives to the cutter-bar maybe done away with, and whereby the knives may be quickly locked to ordetached from said cutter-bar.

To this end our invention consists in certain novel arrangements andcombination of parts, as will be hereinafter fully described in theannexed specification, and particularly pointed out in the claims,reference being had to the accompanying drawings, in which-- Figure 1 isa top plan View, partly in sec- Fig. 2 is a transverse section thereof,taken on the line 2 2, Fig. l. Fig 3 is a detail view of one of thecutters. Figs. 4 and 5 are detail views, which will hereinafter bereferred to.

Inthe accompanying drawings, d denotes ythe finger-bar, and d theguard-fin gers secured thereto, as shown. 'Semicircular recesses d areformed in the upper faces of the guardfinger d, adjaoent to thefinger-bar a, in which is mounted the cutter-bar A, which consists oftwo tubes B C, sliding one within the other, and which are provided withcoincident horizontal slots O O. One end of the innertube C is providedwith an eXteriorly-threaded eX- vtension, upon which is iitted theadjustingnutJ, which is provided with a squared proj ection j, for thereception of a wrench or key.

g denotes a cap-plate, which is secured at its inner end to theiinger-bar and extends over the cutter-bar and holds the same inposition, as will be clearly understood by reference to Fig. 2 of thedrawings.

f indicates the critters, one of which is shown in detail, Fig. 3, andwhich are each provided with a shank p, provided in one of its faceswith notches r r, as shown. The body portions of the knives are extendedlaterally to each side of the Shanks, forming shoulders at their rearedges, as at p p.

When it is desired to attach the knives to the cutter-bar, the tubes BandC are adj usted to the position shown in Fig. 4 of the drawings, soas to bring the'slots O O in the same'.

coincident planes. Th-e shanks p of the knives, which are of a width totit the openings O and O', are then inserted therein, their shoulders ppbearing against the outer tube. The outer tube is then held in a iiXedposition by means of the shanks of the knives fitting the opening O, asshown. A wrench or other tool is then applied to the nut J the inner endof which bears against the outer tube, and by turning the said nut theinner tube will be drawn toward the same and be caused to engage thenotches fr r of the knifeshanks, as clearlyillustrated in Fig. 5 of thedrawings, and thereby securely locking the knives in place. By thisconstruction it will be seen that the knives maybe locked in place, orany one of them removed when desired and another inserted in place inbut a moment of time. .r

Our invention is exceedinglysimple in construction, cheap as to cost,and very effectual in its desired operation.

Having thus described our invention, what we claim is l. The combinationof a cutter-bar composed of two tubes or barrels B and C, sliding onewithin the other, provided with coincident mortises O and O',respectively, with the cutters f, having the notches r r in theirShanks, substantially as and for the purpose described.

2. The combination of the cutters f,- provided with shanks p, formingshoulders on the cutters, and with the notches r o in the edge of oneside of the shanks, with a cutterbar composed of two tubes or barrelssliding one within the other and provided with coincident mortises,substantially as shown and described.

FRANCIS E. PARKER. ROSWELL M. CLARK.

Witnesses:

C. W. WADDELL, J. A. STEELE.

